Universitas Indonesia, 1995
UI - Tugas Akhir
Budi Rochmanto, author
Universitas Indonesia, 2010
UI - Tesis (Open)
Twitty, William B., author
Elex Media Komputindo, 1987
Buku Teks
Universitas Indonesia, 1990
UI - Skripsi (Membership)
Brenner, Robert C., author
Elex Media Komputindo , 1990
Buku Teks